<!doctype HTML>
<html>
<meta charset="utf8">
<title>Content Visibility: hidden-matchable and size contained (reference)</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<link rel="help" href="https://github.com/WICG/display-locking">

<style>
div {
  border: 1px solid black;
}
</style>

Test passes if there is a empty div with border below.
<div></div>
</html>

